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  • Title: [Study on optimal extraction process of Yinju sugarless granules with orthogonal design].
    Author: Su W, Chen M, Ren J.
    Journal: Zhong Yao Cai; 2004 Oct; 27(10):770-2. PubMed ID: 15850362.
    Abstract:
    OBJECTIVE: To study the extxtraction process of chlorogenic acid from Yinju sugarless granules. METHODS: The optimal extraction process was selected with orthogonal design. The content of chlorogenic acid in the extract was detremined. RESULTS: The content of chlorogenic acid was influenced by frequency of extraction, the quantity of water and the concentration of ethanol. CONCLUSIONS: The optimal extraction process is extraction 3 times with 10 times water and with 70% ethanol.
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